#include <iostream>
#include <cmath>
using namespace std;
const double PI = 3.14159295358979;

int main(){
  double angle;
  cout<<"Please enter an angle: ";
  cin>>angle;

  double radian = angle*PI/180;
  cout<<"sin("<<angle<<")="<<sin(radian)<<endl;
  cout<<"cos("<<angle<<")="<<cos(radian)<<endl;
  cout<<"tan("<<angle<<")="<<tan(radian)<<endl;
}
